Carbureter.



J. J. TRACY.

CARBURETER. nPPLicArloH FILED :uw 2a. 1914.

Paened Apr. 10, 191?.

2 SHEETS-SHEET 2.

I Il lill( llllIlllIIl/Il entren KAT-ALES J. TEAGY, Ol? CLEVELANDy SARE UREIER.

implication 'tiled July $58,

al?. 'wim/m, t only concer/i J le it known that l, limes fl. Tenor, n citizen ol the United iles, and e resident ofV tlevelzlnfl, county oi' Cuyahoga, and Stilte of (lliio, here invented :i new :intl nsetul iniprovenient in Carlini-eters. of wliirh the Yiol-- lowing is n speeiiieution, the principle of the ini'ention being herein explained and the liest inode in which l ha ve contemplated nl plving that principle, .so :is to distinguish it frein other inventions.

The ol'vjeet of the present invention is to provide n lehurfge-'forming' cleviee7 or hureter, of simple eonslruetion yet eepohle ot' the various :itliustnients necessary to insure the proper proportion of ai :ind fuel, :is also to insure the thorough inter-mixture 4of these constituents of the charge. To the aeeoniplislnnent of the foregoing :1nd related ends7 the invention, then, Consists oi the zr v:ins hereinafter' fully described and pmu tsularly pointed out in the claims.

The annexed drawings and the following 'description set forth in detail eertuin meeh- :inisni emhotlying' the invention7 such disclosed means constituting, however, out one igt various mechanical 'forms in which the principle of the invention may he use-d.

in said annexed ilrawingret Figure l is a longitudinal vertical section or the device 'proper with the associated float wrunher: Fig'. 2 is a ilnn view or" the seine; fie. Bis a transverse vertical .section of such leviee teken on the plane indieuteil h v the ine l-, Fig. l; Fig. iis e. longitudinal vertical section of e modified eoi'istruotion oi the ileviee; Fig. 5 is a horizontal' section sueh nioilii'ierl construction; and n le elevation oil a oletnil.

llleferringi, tiret ont sill7 t0 the forni of eonstruction illustrated in the first three of the :ihove nenieti Figui-es, the 'i'nel discharge noz- :f .le L it will he observed, projects inwardly troni the wail] of e Cylindrical Casing 2 in :in upwardly inclined tlireetion, heine; provided with n (low'nweril'ly (lireetetl discharge opening Il ns well :is with a ilisehzirge open ing l eline-tl with :i central here through which the fuel is designed to he supplied to the (leviee. The height of the Jfuel in the noix/,le is regulated liv u ilo-it 6 in a loait (fh-.umher T arranged to aetuzrte n valve 8 in the supply line 9 through the medium ot n` lever 10 in the usual way.

rlhe end opening il in the nozzle ,l is n r- :nelly closed hy a needle valve 1l ittetl there Specification of Letters e tent.

glei. Seriell No. 853,654.

fitletl to, the stein oi such ."zilve honing tl'irr engagement in the opor ite weil et t intr. so that the valve will he nnivefl tower-tt or from Die nozzle upon l'ieing rotated. It spring plunger mounted in in omi projeeting troni the ens'ing ministeri. to engage notches in a ilisk lil lixeil, on the stein the vulve so :is to retain the letter in whatever position it .may lie left.

lnteriorly tlireucleil in the lower portion of the easing' 2l helowtlle nozzle i, .is n, oyliir drienl shell le that is open ut its upper enel hut closed at its lowen so es 'to :it the same time close such casing; emi. its tlireznlefl engagement, not milj, may this shell he rotated. hut suoli rotation wil. (luce :i longitudinal movement oli the shell relatively to the resine. Si. needle valve l5 'lor controlling the downwardly tlireetetlrlis rhrn'ge opening et the nozzle has its stem oentrnll;r threinlefl in the hinter end oit 'this shell. Such valve. upon heilig; initially set in desired vertiezil relnliin'i to the shell, is se eurecl in suoli por tion h v look nut lli the lnojeetinir portion ot the stein. of the shell may he prooueetl by moons oit e. lever i?, Eso as to lower the valve euri thus open the downwardly (lireetecl nozzle opening n vnriuhle ernennt.

l1 orniecl lireetly helo'w the neeille volvo proper on the stein whirh suimorts the lutter is al. flaring' henri lll with n ourvetl upper ieee. somewhat resembling' :it mushroom. which receiver: the feel that is clisehergetl through the :'i'lieiiine' -l wliei'i the valve is thus lowered. jinv ilripyiiuee troni this henri are designed to he weight on n like portitioii 'lll iu the shell. siii-,h in. lo entrai just 1oelow n. series o ll (three us shown) in the sifle v shell tlmt are lulnpteil in one posit hitter to register with Corresponding or n ings 2l in the easing it will he obvious thzlt the openings 2l :ire rontrolletl by rotation on the shell ifi., :it the saine time that the nozzle opening El is controlled hy the longituflinul movement ol suoli shell.

lurrouinling the easing 2. so as to he rotatniile with respect thereto ie en outer shell 22 provided with e lever Srl for eenvenient operation, and also haring apertures adapted to register with those in `the easing, so that such lest-nenne@ apertures may lie Closed or opened inzleijieniltntly oli the inner shell.

The inode of operation my snel Bj; reason of' charge-forming device, or `carhureter, may now be briefly set forth, it being understood that the upper end of the casing 2 is connected with the usual manifold, or other connection, leading to the engine cylinder or cylinders, and that the fuel in the nozzle 1 ismaintained, as already set forth, at or about the level shown in Fig. 1. The needle valve 15 controlling the downwardly directed opening 3 of the nozzle is then lowered by suitably rotating the shell 14; through lever 17, this operation being effected, in the case of an automobile engine, by the hand throttle or foot accelerator. The apertures 21 in the wall of the casing for admitting air into the latter will be simultaneously" opened the proper amount. Should it be desired to increase the proportion of fuel to the amount of air thus ad mitted, the other needle valve 11 may be opened slightly, the amount of such opening remaining unchanged during the run-A ning of the engine, and all regulation being secured by adjustment of the first-named valve. In starting, in order that a sulliciently rich mixturewmay be obtained to prime the engine, as it is called, the outer shell 22 on the casing may be` rotated to substantially entirely close the apertures in the latter, despite the open position of the inner shell.

The modification in construction illustrated in Figs. 4, 5 and 6 consists principally in a modified form of shell for controlling the air supply to the casing, a nd in the substitution of other means for shutting oil such air supply in priming the engine. The parts which remain unchanged are designated by the same reference vcharacters as in Figs. l, 2 and 3, and need not be again described. The inner shell 25, however, it will be observed is designed for reciprocable movement only, such movement being secured by means of a bell crank 26 connected with the lower projecting end of the valve stem 27 (corresponding with valve stem 15)', which stein is adjustably held in the shell,

l passing through spiders 28 With the lower of which it has threaded engagement.A A lock nut 29, as before serves to secure such stem in desired position. The shell 25 is provided at its respective extremities with beveled annular surfaces 2G and 27 that are adapted to `seat against complementary beveled annular surfaces on the casing and when thus seated to close lateral openings 30 in the latter corresponding with the apertures 21 in the previously described construction. Upon lowering the shell, however, the casing will be opened a corresponding amount at both the upper and lower ends of the shell, as Will be obvious.

ln place of the outer shell 22 for closing the openings in the casing in priming the engine, a vsupplemental casing 31 ot the nasales .butterliy valve 33, and decreasing gradually to a. point diametrically opposite. The buttertly valve is lprevented from being entirely shutby inealjs-of a set-screw 3J: (Fig. 6). f

mounted 'ina lever-arm 36 on one end ,of its stem. ali adapted to engage an opposed shoulder 35 on the casing, such lever having another arm by means of which the stem may he rotated. spring-pressed plunger,inshoulder 35 coperating with notches on the lever, serves to hold the valve in either its open or closed position.

This second constructional form of the device operates essentially in the saine manner as the rst form, as need not be again ein plained. In both forms it will be observed that the major portion of the fuel is discharged downwardly, that is against the incoming air. The fuel as it escapes from the nozzle is received on the upper surface 0f the Haring head 18 carried-hy the stem of the valve which controls the downwardly directed nozzle opening. Such liead is preierably of fairly large diameter, and has a sharp edge so that the fuel is distributed in as thin a film as possible hy the time it reaches such edge and thusis adapted to be more readily picked up by the air. The fuel that is discharged through the a-lined opening al of the nozzle, will likewise loe received on this head 18 if not vaporized sooner. The device is throughout of 'simple and substantial construction, having no parts that are liable to get out of order.v

f Since, in ruiming light, it is a'pt to be difficult to leave just the right amount of opening for the air to correspond with the mini- Ymum fuel supply position of valve 15, l may supply nozzleas being located above the airinlet openings and as discharging downwardly, I do not mean thereby to limit the construction to one inwhich the Casin 2 is strictly vertical, the essential feature eing merely that the fuel should be discharged in a direction opposite to that in which the air moves through such casing. The descriptive terms just referred to should accordingly be understood in this sense.

of air iow; a shell in said casing having Atrol such air-inlet openings incidentally to such rotation; a needle valve carried by said shell and adaptedl to control such nozzle opening, said valve being provided just belou' its point with a flaring head having a convex tace directed toward such opening; and a second shell rotatably mounted on the outside of said casing rand adapted to control such airinlet openings independently of said first-named shell.

8. In a device of the character described, the combination oll a casing having an airinlet opening; a fuel supply nozzle projecting into said casing so as to lie in the path c" flow of the air passing from said openinp` through said casing.y said nozzle having one discharge opening directed oppositely to such direction of flow and a second discharge opening, and needle valves mounted in said rising and independently 'operable to control such nozzle openings, respectively.

9. In a device of the character described, the combination of a casing havingr air-inlet openings in its sidesga fuel supply nozzle projecting into said casing from one side at a point beyond such openings, having regard to the direction of flow of air through Said casing from such openings, said nozzle having one discharge opening;r directed oppositely to such direction oi" How; a second .discharge opening; and needle valves mounted in said casing and independently operable to control such nozzle openings, respr-ictively.

l0. In a device of the character described, the combination ot' a casing having' air-inlet openings in its sides;` a fuel supply nozzle projecting into said casing from one side at a point above such openings, said nozzle having a downwardly directed and a terminally alined discharge opening; and needle valves mounted in said casing and independently operable to control such nozzle openings, respectively.

1l. ln a. device of the characterdescribed, the combination of a casing havingl air-inlet openings in its sides; a fuel supply nozzle projecting into said casing from one side at a point above such openings, said nozzle having a downwardly directed and a tern1i-v nelly alined discharge opening; needle valves mounted in said casing and independentlyoperable to control such nozzle openings, respectively; and a valve, operable conjointly with the needle valve controlling such downwardly directed nozzle opening, adapted to control such air-inlet openings.

1Q. ln a device of the character described,

rthe combination of a casing having an airinlet opening; a fuel supply nozzle projectinfr into said casing andk formed with a dis-l charge opening opposed to the direction of flow of air through said casing; and a needle valve adapted to control such discharge opening, said valve being provided, just below its 1 oint, with a flaring head, having a convex ace directed toward such opening. 1.3. ln a dovice'oli the character described, the combina-ion of a casing having airinlet' 'openings in its sides; a fuel supply nozzle projecting into said casing from one side at a point l; eyond such openings having T5 regard to the direction of the flow of air;- from said openings 'through said casing', said nozzle being formed with a discharge opening directed oppositely to such direction of air iioiv; and a needle valve inoun d in said casing so as to be reciprocable longitudinally of the saine and adapted tocontrol such nozzle opening, saidvalve 'being pro. lvidd just below its point with a daring iea B5 Signed by me, this 27th day 'of July, 1914.

JAMES J. TRACY. Attested by*- MARY GLADWELL, JNO. F. OBERLIN. 

